Methylene blue, from its aqueous solution, is adsorbed on activated charcoal at 25°C. For…
Chemistry · JEE Advanced · NTA Exams — Surface Chemistry
Methylene blue, from its aqueous solution, is adsorbed on activated charcoal at 25°C. For this process, the correct statement is
- the adsorption requires activation at 25°C
- the adsorption is accompanied by a decrease in enthalpy
- the adsorption increases with increase of temperature
- the adsorption is irreversible.
Answer
(B) the adsorption is accompanied by a decrease in enthalpy
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